prestackeventsapi.h File Reference

Include dependency graph for prestackeventsapi.h:

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Functions
int	dGBPreStackEventsSetSurvey (const char *dataroot, const char *survey)
float	dGBPreStackEventsGetInlDistance ()
	returns the distance on a crossline between two inlines numbers. More...
float	dGBPreStackEventsGetCrlDistance ()
	returns the distance on a inline between two crossline numbers. More...
int	dGBPreStackEventsOpenReader (const char *reference)
void	dGBPreStackEventsCloseReader (int handle)
int	dGBPreStackEventsGetRanges (int handle, int &firstinl, int &lastinl, int &inlstep, int &firstcrl, int &lastcrl, int &crlstep)
int	dGBPreStackEventsGetNextCDP (int handle, int previnl, int prevcrl, int &nextinl, int &nextxrl)
int	dGBPreStackEventsMoveReaderTo (int handle, int inl, int crl)
int	dGBPreStackEventsGetNrEvents (int handle)
int	dGBPreStackEventsGetEventSize (int handle, int eventindex)
void	dGBPreStackEventsGetEvent (int handle, int eventindex, float *offsets, float *angles, float *depths, float *weights)
void	dGBPreStackEventsGetDip (int handle, int eventindex, float &inldip, float &crldip)
void	dGBPreStackEventsGetEventWeight (int handle, int eventindex, float &weight)
int	dGBPreStackEventsGetHorizonID (int handle, int eventindex, int &horid)

Function Documentation

void dGBPreStackEventsCloseReader

(

int

handle

)

float dGBPreStackEventsGetCrlDistance

(

)

returns the distance on a inline between two crossline numbers.

void dGBPreStackEventsGetDip	(	int	handle,
		int	eventindex,
		float &	inldip,
		float &	crldip
	)

Parameters

inldip	dip when going in the direction of increasing inline numbers
crldip	dip when going in the direction of increasing crossline numbers

void dGBPreStackEventsGetEvent	(	int	handle,
		int	eventindex,
		float *	offsets,
		float *	angles,
		float *	depths,
		float *	weights
	)

Parameters

eventindex	goes from 0 to getNrEvents() -1
offsets	is either zero or a pointer to an array with at least getEventSize number of floats
angles	is either zero or a pointer to an array with at least getEventSize number of floats
depths	is either zero or a pointer to an array with at least getEventSize number of floats

int dGBPreStackEventsGetEventSize	(	int	handle,
		int	eventindex
	)

Parameters

eventindex

goes from 0 to getNrEvents() -1

Returns

number length of the pick

void dGBPreStackEventsGetEventWeight	(	int	handle,
		int	eventindex,
		float &	weight
	)

int dGBPreStackEventsGetHorizonID	(	int	handle,
		int	eventindex,
		int &	horid
	)

Returns

1 if the pick has an identifier for the (post stack) horizon thats was used to track the pick into offset domain. Otherwise, it returns zero. The eventual horizon id is set in the horid parameter.

float dGBPreStackEventsGetInlDistance

(

)

returns the distance on a crossline between two inlines numbers.

int dGBPreStackEventsGetNextCDP	(	int	handle,
		int	previnl,
		int	prevcrl,
		int &	nextinl,
		int &	nextxrl
	)

Enables traversal of all data. At start with previnl=-1, prevcrl=-1, and the first cdp will be return. Next time, put in the current cdp, and the next cdp will be returned. |return -1 on error, 0 on no more cdps and 1 on success.

int dGBPreStackEventsGetNrEvents

(

int

handle

)

Returns

number of picks available at current position

int dGBPreStackEventsGetRanges	(	int	handle,
		int &	firstinl,
		int &	lastinl,
		int &	inlstep,
		int &	firstcrl,
		int &	lastcrl,
		int &	crlstep
	)

Note

There is not guarantee that all cdps in the sampling are present, but if you traverse all these cdps, you are guaranteed to get all available data.

int dGBPreStackEventsMoveReaderTo	(	int	handle,
		int	inl,
		int	crl
	)

Returns

-1 on failure, 0 on no data present, 1 on success

int dGBPreStackEventsOpenReader

(

const char *

reference

)

Returns

handle, or -1 if failure

int dGBPreStackEventsSetSurvey	(	const char *	dataroot,
		const char *	survey
	)

Returns

-1 on failure